This work was published in the US without copyright notice
at a time when such notice was required to secure copyright.
It therefore passed into the public domain upon initial publication.
This digital reprint remains in the public domain.
Advertising brochure for Linotypes: "Blue Streak" models 5, 31 & 32, 29 & 30, 33 & 34, and 35 & 36. Thanks are due to Greg Fischer (The Linofish) for preserving this document and making it available.
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